Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Due to a lapse in government funding, the majority of USGS websites will not be updated except to provide important public safety information. Websites displaying real-time water data will be updated with limited support. For more information please see www.doi.gov/shutdown.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

USGS Daily Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 11046000 SANTA MARGARITA R A YSIDORA CA


San Diego County, California
Hydrologic Unit Code 18070302
Latitude  33°18'40", Longitude 117°20'47" NAD27
Drainage area 723  square miles
Gage datum 70.40 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1980-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 52 61 317 136 29 12 5.1 2.2 1.7 8.5 5.1 43
2 42 52 238 83 27 12 5.2 2.2 1.8 5.3 5.3 12
3 64 73 189 65 25 12 5 2.2 1.8 3.4 5 11
4 91 75 109 56 27 12 5 2.1 1.8 3.4 4.5 29
5 106 110 171 84 30 12 4.8 1.9 1.9 3.2 4.7 29
6 123 195 177 57 30 11 4.6 1.9 2 3.3 8.2 21
7 228 141 105 75 25 10 4.5 2.4 2 3.7 6.8 32
8 157 426 86 52 22 11 4.1 2.4 2.2 3.5 5.9 30
9 195 150 79 41 21 11 3.9 2 2.2 3.3 9.1 17
10 415 85 83 143 21 10 3.6 3 2.2 3.1 5.5 15
11 481 73 219 89 20 11 3.4 2.5 2.3 3.2 6 14
12 127 78 117 63 20 11 3.3 2.5 2.1 3.2 8.8 15
13 113 120 130 52 29 9.9 3.2 2.4 2.1 3 9.1 40
14 141 418 93 51 25 9.6 3.2 2.1 2.3 3 6.4 29
15 192 237 164 71 22 9.1 3 2.4 2.4 3.1 5.9 44
16 656 129 196 43 22 9.5 3 2.6 2.3 3.2 5.9 34
17 269 140 113 39 20 9.3 3 3 2.6 3.2 5.9 34
18 292 176 152 40 19 8.3 3.1 3 2.7 3 5.9 58
19 132 255 135 39 18 7.9 2.9 3.8 2.8 3.3 7.2 25
20 136 167 98 33 18 7.6 2.7 4 2.9 33 8.5 69
21 227 163 189 33 17 7.5 2.5 46 3 36 14 150
22 235 209 140 32 16 7.2 2.4 7.3 3.3 4.9 35 449
23 262 278 161 30 18 7.1 2.3 3.5 3.2 3.8 14 107
24 90 229 130 28 18 6.9 2.4 2.5 2.9 3.6 8.8 85
25 91 182 104 27 15 6.8 2.4 2.6 3 3.3 13 68
26 118 193 93 27 15 6.7 2.3 2.5 3.9 3.4 9.5 71
27 98 152 174 30 14 6.3 2.2 2.3 3.2 55 8.8 47
28 104 200 99 27 14 6 2.2 1.9 2.5 27 12 57
29 83 47 91 32 13 5.6 2.2 1.6 2.3 14 38 93
30 53   113 39 13 5.4 2.2 1.6 2.2 6.9 53 45
31 47   149   12   2.2 1.6   5.3   29